Middle Schoolers

Alien Worlds and Androids brings the work of scientists to life in an exhibition that presents the possibility of life existing beyond Earth through the use of robots, telescopes, space probes and high-tech laboratories.

Celebrate the end of summer and the beginning of a new school year with a fun back-to-school event at the library. There will be crafts and games for ages 7-11.

7 to 8 p.m. Free.

At the St. Louis County Library, Daniel Boone Branch.

Girls ages 14 to 18 can bring out their inner Katniss and learn some of the archery skills this character used in the popular book series and movie The Hunger Games. Participants will rotate between three activities throughout the day: archery, fire/water/shelter skills and camouflage.

Participants should dress for the weather and bring a water bottle and snack. 

Badgers digging in the prairies, otters playing in the rivers, minks hunting in the lowlands - what do they all have in common? Kids will learn how these interesting predators are related and are all considered members of the weasel family. 

9:30 to 11 a.m. 

At Powder Valley Conservation Nature Center in Kirkwood, near the intersection of I-44 and I-270. Call 314-301-1500 for reservations. Free but reservations are required.

To guide kids and parents alike through the causes and effects of sports injuries as well as their prevention, Washington University and the St.

Teens have the opportunity to discuss reading and writing with the author of 20 nationally best-selling mystery novels at this free event at the St. Louis County Library Headquarters.

Cardinals mascot Fredbird will visit Eckert Farms in Belleville so he can meet and greet guests.

Bring your kids to meet Fredbird between 11 and 11:30 a.m. on July 18. or from 12:30 to 1 p.m. on August 8.

The visit with Fredbird is free. No reservations are required. 

More information: eckerts.com